Question about 1994 Volvo 850

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1995 volvo 850 turbo no hot air

My heater is not working. i started my car this morning and let it sit for about 10 minutes. Once i got in the car it was only blowing out cold air. I checked and everything was in the right position. It worked fine last winter but not now. I have also noticed that the fan stays on a few minutes after i have parked the car. i have barely used the air conditioner, could really use your help if possible.

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Low on coolant would be my first guess. Does the temp gauage go up to middle, normal range?Should have a low coolant light on dash, but sometimes the sensor is diabled or broken. I would relace the t-stat and the sensor next to the t-stat housing. Tou will need a 40 torx to get the t-stat off.

Posted on Oct 28, 2008

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2000 caddy Seville ...after starting and engine warm turn on the heater and it blows cold air. Fan works / waiting for hot air and then all the sudden it kicks in. Engine at normal temp


Low coolant, if there is an air pocket in the engine it will make it to the heater core. Once there , the air coming out is cold/cool. Once the coolant fills the heater core, it gets hot. If the coolant is fine hot or cold, then have the HVAC system scanned.

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You can check 2 things. 1., have someone in the car to turn the key to the start position. Tap the starter with a small hammer and see if it cranks. If it does, replace the starter. 2., have the battery tested as well as the connections to the battery. Corrosion builds and can cause heavy resistance to heavy loads(like starting). These are the 2 most likely causes. Let me know if you need further assistance.

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